Street-watering cart.



'PATENTED.MAR.14,l905. f c. w. GOLLYBR. STREET WATERING CART} APPLICATION FILED JULY 15, 1904- UNITED STATES Patented March 14, 1905.

PATENT. OFFICE.

ONE-HALF TO HERBERT M. BRIGGS, OF RANDOLPH, MASSACHUSETTS.

STREET-WATERING CART.

SFECIFICATION forming part of Letters Patent No. 785,033, dated March 14, 1905.

Application filed July 15, 1904. Serial No. 216.648.

To all 11/71/0771, it may concern:

Be it known that 1, CHARLES W. OoLLYnR, a citizen of the United States, residing at Randolph, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Street Watering Carts; and 1 do hereby declare the following to be a full, clear, and exact description of the invention,su-ch as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to improvements in street-watering carts.

It is well known that the dust of road-surfaces is a pronounced repository of disease germs and is therefore a prolific cause of contagion and disease. The ordinary wateringcart in laying the dust allays for a time the danger therefrom by preventing the'dust and the accompanying germs from being suspended and transported by the wind; but as soon as the dust has been dried after being wet it again becomes as dangerous as before, since the activity of the germs is not impaired by mere moisture.

It is an object of the present invention to produce a watering-cart which will not only lay the dust, but will also disinfect the same, by applying, together with the water, a suitable disinfectant and which will apply the disinfectant automatically and in the most effective and economical manner.

A further object of the invention is to produce a watering-cart which may safely use water not fit for drinking purposes and which would be unsafe for use in ordinary wateringcarts.

To the above ends the invention consists in a watering-cart having the means hereinafter described and claimed for mingling a disinfectant with the water used in sprinkling.

In the drawings, Figure l is a side elevation of a watering-cart embodying the present invention. Fig. 2 is a vertical section of the measuring-valve, and Fig. 3 is a vertical section of the mixer.

The illustrated embodiment of the invention is a watering-cart provided with a steam engine and boiler for propelling the cart.-

The engine 1 and boiler 2 may be of any usual or suitable construction. The water is carried in a tank 3 and is sprayed upon the road-surface by perforated sprinkler-heads 4, arranged one at each side. In order that the water may be sprayed with sufficient force to cover a large area, it is forced through the sprinkler-heads by a steamspump 5, which is supplied with steam through suitable connections with the boiler 2. Between the pump and the sprinkler-heads there is a pressurechamber 6, partly filled with air for equalizing the delivery of water from the pump. The disinfectant, which in the illustrated embodiment of the invention is in liquid form, is carried in a tank 7 which communicates through a pipe 8 with a measuring=valve 9, through which the water passes on its way from the tank 3 to the pump 5. The function of the measuring-valve 9 is to introduce into the water at its passage therethrough a definite amount of disinfectant. As shownin Fig. 2, the valve member 10 is maintained against its seat by a spring 11. valve-seat communicate with an annular passage 13 in communication with the pipe 8.

When the pump by its suction opens the measuring-valve and causes water to bedrawn therethrough, a certain amount of the'disinfectant also enters through the perforations 12, the amount being greater or less as the water is drawn faster or slower through the valve and being regulated by a hand-valve 14; adjusted by the operator. By'these means an approximately constant mixture of water and,

disinfectant is delivered to the pump' and thence to the spraying-heads. When the operation of the pump ceases, the mixing-valve is closed automatically by the spring 11, and thus the flow of water and disinfectant is interrupted automatically without attention on the part of the operator. In order that the disinfectant may be thoroughly mixed with the water, a mixer 15 is introduced between the pump and the pressure-chamber 6. As

Perforations 12 in the shown in Fig. 3, the mixer is a chamber having baffle-plates 16, which form a tortuous passage for the fluid and cause it to be thoroughly mixed.

The invention is not limited to the details of construction and operation of the illustrated embodiment, .but may be embodied in other forms broadly defined in the claims.

Having now described the invention, what is claimed is- 1. A watering-cart, having, in combination, a water-tank, a disinfectant-tank, a sprayinghead, a pump located below the said tanks and connected with the water-tank, a measuring-valve in the connection between the Watertank and the pump, a connection between the disinfectant-tank and the measuring-valve, a connection between the pump and the spraying-head, and a mixer interposed in the connection between the pump and the sprayinghead comprising a chamber with oppositelydisposed baffle-plates, the said measuringvalve operating to open and deliver water and disinfectant to the pump when the latter is in operation in definite proportions, and to close automatically and shut oli both the water and I i) the disinfectant when the operation of the pump ceases, substantially as described.

2. A watering-cart, having, in combination, a water-tank, a disinfectant-tank, a sprayinghead, a pump located below the said tanks and connected with the water-tank, a measuring-valve in the connection between;- the"wa CHARLES w. (JOLLYER.

Witnesses:

HERBERT M. BRIGGS, FARNUM F. DORSEY. 

